Event Bus Messages

Usually, the content of a message is a string of characters in a JSON format. Others, it may be an array of bytes to be serialized/deserialized in a specific way. Our event-bus allows use both formats.

The type of the event, i.e. the routing_key of the message, defines the format of the message to be understood by both producer and consumer.

Except special cases, the message is a JSON text string with only one field: uri, that identifies the resource implied:

{ 
  "uri": "...",
}

So, for example, the message associated to the creation of a new source, i.e. routing_key=source.new, may be:

{ 
  "uri": "http://epnoi.org/sources/2233-23238-212-23",
}

Special Cases

At present, no special cases exist.